.systemName{
    height:100%;
    float: left;
    color: #fff;
    font-size: 30px;
    letter-spacing: 50px;
    margin-left: 40%;
    line-height: 60px;
}
.topNav{
    float: right;
}
#slideshow img{
    width: 100%;
    height: 700px;
}
#third ul{
    width: 1680px;
    margin: 10px auto;
    height: 940px;
}
#third ul li{
    float: left;
    list-style: none;
    margin: 10px;
    height: 450px;
}
.li-content{
    width: 540px;
    height: 330px;
}
.content{
    font-weight: bold;
    font-size: 20px;
    padding-bottom: 2%;
    padding-top: 3%;
    text-align: center;
    margin-bottom: 3%;
}
.li-content p{
    color: #999;
    line-height: 1.8;
    height: 5.4em;
    overflow: hidden;
    font-size: 14px;
    text-align: justify;
}
#bottom{
    background-color: #dfdfdf;
    height: 100px;
    color: #121212;
    text-align: center;
    padding: 2%;
    font-size: .12rem;
}
#bottom p{
    padding-left: .2rem;
    font-style: normal;
    line-height: 15px;
    background-color: #dfdfdf;
    color: #121212;
    text-align: center;
    padding: 10px;
    font-size: 14px;
}
#bottom a:hover{
    color: red;
}